baber/WOPTO huggingface dataset:
Patent GB-142983-A (GB)
Title: Improvements in or relating to the lighting of the electric lamps of bicycles and the like machines
IPC: B62J6/00
Filed: 1919-04-04
Abstract: 142,983. Hamilton, C. J. April 4, 1919. Lighting by electricity.-The batteries B, B<1> for supplying current to the head and rear electric lamps of a bicycle &c. are contained in a casing B<2> which is supported on the frame A of the bicycle and can be rotated about pivots N, N<1> to switch one or both lamps on and off. The casing B<2> is of metal and is closed by metal caps D, D<1> having insulating outer surfaces H, H<1>. Metal sockets E, E<1> are attached to but insulated from the caps D, D<1> and make contact with the terminals Q, Q<1> of the batteries. The other terminals of the batteries are in contact with the casing through a spring R. The leads W, W<1> from the head and rear lamps are connected to the pivots N, N<1> and to spring plunger contacts T, T' carried by insulating blocks L held in clips K attached to the bicycle frame A. The insulating surface H of the lower cap D is provided with two holes and a recess, the surface H<1> of the cap D<1> having a single hole. These holes allow the plungers T, T' to make contact with the metal caps D, D<1> when the casing B<2> is rotated and so complete the circuit through the lamps. The casing can be rotated to break the contact between the plunger T' and the casing and maintain the circuit through the head lamp only. Further rotation of the casing switches off both lamps the plunger T engaging in the recess in the cap D and preventing accidental displacement of the casing. The casing and batteries can be removed by depressing the cap D' against the action of the spring.
Patent GB-795749-A (GB)
Title: Improvements in or relating to tool for sandblasting
Inventor: FRITZE MARVIN E
IPC: F23J3/02
Filed: 1956-03-19
Abstract: 795,749. Abrasive blasting. FENNELLY CO., J. C. March 19, 1956, No. 8493/56. Class 60. A tool for sandblasting the interior of pipe and the like comprises a rigid openended tubular nozzle interiorly free from obstruction to the movement of sandblasting material therethrough and a generally conical deflector coaxial with the nozzle and with its vertex directed towards the nozzle, the deflector being secured to the nozzle by bars. A pipe 1 is cleaned internally by a sandblasting tool comprising a nozzle 3, preferably of tungsten carbide, to which abrasive is conveyed by air under pressure through a hose 4. Spaced from the end of the nozzle and in axial alignment therewith is a deflector 6 ; this may be made entirely of tungsten carbide, but is preferably in two parts, part 8 being of sintered tungsten carbide and the remainder 9 of ceramic material, e.g., steatite. A threaded stub shaft 10 centrally secured to the part 8 extends through a central threaded bushing in the ceramic portion 9, a lock nut 11 being provided, the shaft 10 extends through a threaded bushing 26 in a ceramic member 20, and its projecting end has threaded thereon one end of a rod 28 acting as a locknut. A disc 30 is secured to the outer end of the rod 28, the annular passageway between the disc and pipe accelerating the air to carry the abrasive out of the pipe. The member 20 has three legs 21 each formed with a slot 22 in which one end of a metal strip 24 is secured by a set screw 23 ; the other ends of the three strips 24 are rigidly secured to an annular plate 19. The strips have inserts 25 of tungsten carbide ; the legs have bevels 33 at each side of each strip. The plate 19 is carried by three channel arms 18 secured to a collar 15 mounted on a thickened end portion 17 of the nozzle 3, and secured thereon in axially adjusted position by a set screw 16. The tool is supported within large diameter pipes by three sets of lugs 35, 36. A roller 37 is carried in the forked end of the leg 36, which is pivoted to member 18 and extends between two spaced legs 35 pivoted at 40 to the member 18 and carrying between their free ends a roller 38. The legs are secured in adjusted position by a bolt 42 passing through slots 41, 43 in the legs. In a modification, the legs are not slotted but are connected by an ordinary pivot. The legs 35 are pivoted at 46 to a spacer portion 47 of a sliding shoe 45, the remainder 48 of the shoe slidably fitting between the sides of channel arm 18 and projecting above the sides of the channel for securement to a band 50 encircling the tool. A set screw 51 extends through band 50 and shoe for engagement with the bottom of channel arm 18. Sand, mineral shot &c. are used for cleaning and rice hulls, fruit pit material &c. for polishing the pipe.
Patent GB-669307-A (GB)
Title: Improvements in or relating to counting apparatus
Inventor: DUNCAN ANGUS WELLESLEY
IPC: G06M1/14
Filed: 1948-03-24
Abstract: 669,307. Adding and subtracting apparatus; displaying items. GREENWAY, W. March 24, 1949 [March 24, 1948], No. 8596/48. Class 106 (i). [Also in Group XV] In machines having a number of totalizing discs arranged on parallel spindles side by side in a flat casing and adapted to be set differentially by knobs acting on the spindles through one-way clutches, a pointer, or a disc with an aperture co-operating with numerals painted on the casing, is fixed to each knob to indicate the last item added or subtracted. The totalizing discs l show through apertures i, j, k, and are set by knobs b, c, d to which are attached discs e, f, g having apertures h through which the last item added or subtracted is shown. The item indication may be returned to zero without alteration of the totalizing discs through the medium of the one-way clutches in the knobs, the totalizing discs being restrained by spring-loaded rollers t. Specification 510,444 is referred to.
Patent GB-609200-A (GB)
Title: Improvements in motorised agricultural tractors and the like
IPC: B62D49/06
Filed: 1947-03-21
Abstract: 609,200. Agricultural implements. HUDSON, K. E. March 21, 1947, No. 8756/46. [Class 6(i)] A motorized agricultural implement comprises a chassis 1 supported on twc power-driven rear wheels 7 and a single front wheel 2, steered by a steering wheel mounted on a shaft 4, the rear wheels being driven by a motor 9 mounted behinc the driver's seat 6, and a wheeled toolframe 25, freely pivoted to the main frame being provided between the front and rear wheels. The tool-frame 25 is mounted or depth-control wheels 37 which are both vertically and laterally adjustable, and is connected to a bracket 17 on the vehicle chassis by pivoted links 19. Culivating tools 36 are mounted on the tool-frame. A further tool-frame 34 carrying trackeliminators 35 is mounted behind the rear wheels. The tool-frames are connected by cables 26, and 33 to the arms of a pivoted Y-shaped lever 28 by which the tools are raised under the action of a hydraulic 30. The rear wheels are provided with independent brakes. On account of the pivoted mounting the tools can rise and fall with the undulations of the ground.
Patent GB-125801-A (GB)
Title: Improvements in Means for Controlling Admission and Exhaust in Double Acting Tandem Explosion Engines Working on the Four Stroke Cycle.
Inventor: LLOYD JOSEPH CHARLES WILLIAM
IPC: F01L5/04
Filed: 1918-05-28
Abstract: 125,801. Lloyd, J. C. W. May 28, 1918. Valves. - A double-acting four-stroke-cycle engine with four cylinders in two tandem pairs is controlled by concentric sleeve and piston valves working in two auxiliary cylinders. Fig. 5 is a plan view, and Fig. 3 a developed vertical section. The working cylinders A<1>, B<1>, C<1>, D<1> have pistons A, B connected to opposed cranks, and the valve-cylinders E, F contain sleeves G and piston valves H operated by eccentrics about 90 degrees apart on a half-speed shaft. Each pair of valves controls admission and exhaust for the upper part of two working cylinders and the lower part of the other two cylinders. The inlet pipes are connected to annular spaces E<1>, E<3> around the valve cylinders, and the exhaust pipes communicate with annular spaces E<2>, and with axial passages J in the piston valves. In a modified form of valve, the exhaust passage J extends the whole length of the valve, and the three annular spaces E<1>, E<2>, E<3> are all connected to the inlet pipes. Specifications 24,627/09 and 117,350 are referred to.
Patent GB-555892-A (GB)
Title: Improvements in thermostatic electric switches
IPC: H05B41/06
Filed: 1942-06-26
Abstract: 555,892. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., SCOTT, W. J., RUFF, H. R., and MONK, M. June 26, 1942, No. 8797. [Class 38 (v)] In a thermal switch having a resistance-heated bimetal element 2, an auxiliary resistance heater 11 is permanently in shunt with the contacts 4, 5 of the switch to generate such additional heating that the contacts are maintained open on persistent operation of the switch, such as would occur in connection with the failure to start of a discharge lamp. In a modification, not shown, the auxiliary resistance heats a further bimetal strip which bears on its free end the contact strip 6 to move it out of the path of movement of strip 2. Strip 6 may be trimetallic to compensate for ambient temperature. Specifications 292,110, [Class 38 (iv)], 532,490, 543,233, and 558,415 are referred to.
Patent GB-490556-A (GB)
Title: Cores for motor-vehicle radiators or other heat-exchangers, and the manufacture thereof
IPC: F28D1/03
Filed: 1937-03-25
Abstract: 490,556. Radiators for motor vehicles. RANDLE, F. March 25, 1937, No. 8812. [Class 64 (iii)] A motor-car radiator consists of corrugated plates 12 arranged between parallel, flat tubes 11, the front and rear edges of the tubes extending as least as far as the front and rear edges of the corrugated plates 12. The folds of the corrugations 12 have pressed out depressions and elevations, 13, 14, Fig. 2. The tubes 11 are made from sheet metal, the walls being spaced apart by pressed out ridges 15, Fig. 1, or by circular spacers.
Patent GB-1285709-A (GB)
Title: A method of manufacturing semi-conductor devices
IPC: H01L21/68
Filed: 1968-10-28
Abstract: 1285709 Semi-conductor devices JOSEPH LUCAS (INDUSTRIES) Ltd 2 Oct 1969 8940/72 and 8941/72 Divided out of 1285708 Heading H1K A plurality of similar semi-conductor devices 15 are manufactured from a wafer by dividing it so as to form a plurality of separate devices with channels therebetween, each channel exposing a PN junction, pouring a curable compound into the channels, and curing the compound so as to form a membrane 17 interconnecting the devices. The wafer division may be by means of etching, using a wax masking layer on the wafer, and the compound may be a silicon based, cross-linked, synthetic rubber material. Prior to masking, the wafer may have contacts plated thereon, and during the soldering of electrodes to the contacts, a device severed from the membrane may have its surrounding portion of the membrane left intact, or decomposed, at the chosen soldering temperature. The membrane may be flexible or brittle, in the latter case devices being separated by fracture of the membrane.
Patent GB-540803-A (GB)
Title: Improvements in driving gear for internal combustion engines
IPC: F02B73/00
Filed: 1940-05-20
Abstract: 540,803. Driving-gear ; plant. AKTIEBOLAGET ATLAS DIESEL, and THEGE, E. O. P. May 20, 1940, No. 8964. [Class 7 (ii)] Crank-shafts 28, 29 each associated with a line of cylinders 1, 2 drive a take-off shaft 3 through separate crank-shafts 31, 32, coupled to the shafts 28, 29 respectively and connected to each other by similarly-phased crankpins and one or more connecting-rods 36. The additional crank-shafts are mounted in a casing 19 attached to the engine crank-casings to which the cylinders 1, 2 are secured. Two such sets as shown may drive a main shaft through reduction gearing.
Patent GB-1152556-A (GB)
Title: Process for producing Hydrogen Fluoride from Alkali- and Alkaline Earth Fluosilicates
IPC: C01B7/19
Filed: 1968-02-23
Abstract: 1,152,556. Hydrogen fluoride. ALLIED CHEMICAL CORP. 23 Feb., 1968 [24 Feb., 1967], No. 9005/68. Heading C1A. Hydrogen fluoride is produced by dispersing at least one alkali- and/or alkaline earth-metal fluosilicate in at least one molten alkali- and/or alkaline earth-metal silicate to decompose the fluosilicate into a mixture of solid and gaseous products, and treating this mixture in the presence of the molten silicate at 1300‹ to 1600‹ C. with at least 3 moles of water vapour per mole of fluosilicate, the period of treatment and other process conditions being such that substantially complete conversion of the fluosilicate to silicate and hydrogen fluoride occurs. At least one alkali- or alkaline earth-metal fluoride plus silica may be dispersed in molten silicate, in which case the total number of moles of silica plus fluoride is not more than the number of moles of fluosilicate, and in which case at least one extra mole of water is added in said water treatment per mole of fluoride. In Fig. I, fluosilicate ore unloaded at 1 passes via elevator 2, silo 3, bin 4, feed mechanisms 5 and 6, and screen 7 into storage hopper 8, whence an hydraulic ram 10 feeds fines into a first melting zone 34 of reverberatory furnace 11, containing a pool of molten reaction mass 11a. Oversize ore is fed via hopper 14 and feeder 37 into a second melting zone 35, communicating with 34 via holes in barrier 32. The melting zones are charged initially with a silicate melt, which is replenished by the silicate by-product of the process. The fluosilicate reacts in zone 34, and HF, SiF 4 , and other products pass into zone 35a (Fig. 2), and flow as a shallow stream 41 down the incline 29a, whilst being heated by gas burners 38 which produce sufficient water as a combustion product to provide the said 3 moles per mole of fluosilicate, and thus the reaction goes to completion in this zone, so that HF, impurity gases, and dust pass from the furnace to cooler 9, a heat exchanger, and cyclone 12 where dust is removed and recycled to 8. The impure HF passes to absorber 18, where NaF and SiF 4  vapours are removed, then via 19 to heat-exchanger 21, where the HF is cooled to about 100‹ C., so that it may be readily absorbed in one of the absorbers 20, whilst absorbed HF in the other absorber 20 is desorbed by heating to above 350‹ C., and recovered as liquid HF, via cooler 22 and refrigerators 23 and 24, in storage tank 26.
Patent GB-576023-A (GB)
Title: Improvements relating to synthetic resins
IPC: C08F18/20
Filed: 1943-06-04
Abstract: Synthetic resins are prepared by copolymerizing a vinyl carboxylic ester containing only one ethylenic linkage with a 2-halogenoallyl carboxylic ester of formula CH2 = CX. CH2OOC.CnH2n + 1 where X = halogen an n=integer.  Specified vinyl esters are vinyl acetate, propionate and benzoate.  Preferred 2-halogeno-allyl esters are 2-chloro-allyl acetate and 2-bromo-allyl acetate.  Preferably the proportions are such that the copolymer contains 1-14 per cent by weight of the 2-halogenoallyl ester.  The process may be assisted by the use of a polymerization catalyst, e.g. an organic peroxide and by warming.  Examples are given.  Specification 576,021 is referred to.
Patent GB-319064-A (GB)
Title: Improvements in or relating to machines for surfacing fabrics and like materials in long lengths
IPC: D06B3/10
Filed: 1928-03-26
Abstract: 319,064. Downham & Co. (1927), Ltd., J., and Platt, S. March 26, 1928. Bronzing and the like.-Relates to a machine for coating fabrics and like materials in long lengths by applying an adhesive and then dusting or sifting powdered cotton, wool, &c. in various colours if required on to the material. Fig. 1 shows a machine for treating a web of fabric 9 unwinding from a roll 8 and rewound on a takeup roll (not shown). Adhesive is applied to the fabric as it passes between rollers 10, 11, which, in conjunction with side plates 13, form a trough. The roller 11 is screw-adjustable, and the fabric is tensioned and pressed against the roller 10 by means of a counterweighted roller 14. A scraper 46 spreads the adhesive and returns excess to the trough, and the fabric next travels over a flexible vibratory table of textile material or of rubber or leather fixed at its ends to blocks 47, 48. Above the table are powder-applying devices 37, 38 each comprising a powder box 45, which is provided with a perforated bottom and is divided into compartments, and which is fitted in a sliding frame 44, both frames being simultaneously reciprocated by rods 43 connected to bars 42 fixed to a rocking shaft 39 actuated from an oscillating arm 35. The boxes 45 stop with a jerk at the end of each stroke either by allowing looseness in the rods or pins or by mounting the boxes slidably in the frames. A number of beaters 36 on rotary shafts 32 act against the underside of the flexible table, and an additional beater 33 acting on the fabric 9 as it leaves the machine serves for removing dust. The various rollers, beaters, &c. and the arm 35 are actuated by belt drives from a motor 28. Fig. 3 shows a modified arrangement for applying the adhesive. The fabric 9 is tensioned by a scrimp 4, and then passes over two sets of edges 49 between which it is pressed down by means of a doctor blade 50 mounted on slides 51 vertically adjustable by rotating screws 54 geared to hand-wheels 52. The adhesive is placed in the space between the doctor 50, the fabric in front of it, and two side plates. The doctor 50 is detachable and reversible and may have edges of different shape so that either a blunt or a sharper edge may be used. According to the Provisional Specification, the vibratory table consists of an endless conveyer, the powdered material may consist of silk or leather, and colour may be added to the adhesive.
Patent GB-996190-A (GB)
Title: Drive for rotating workpieces in vibratory testing machines
IPC: G01M1/06
Filed: 1962-03-09
Abstract: 996,190. Dynamic balancing machines. W.&T.AVERY Ltd. March 9, 1962 [March 22, 1961], No. 9062/62. Heading G1X. In a dynamic balancing apparatus the transmission of vibrations from the drive to the driven test body, due to unbalance in the drive is prevented by the mounting arrangement of the drive. A drive motor 8 (Fig. 1, 2) is attached to an intermediate framework 1 mounted by rod springs 2 on a base 3. A rod spring 13 is clamped between the motor 8 and the base 3 to prevent axial vibrations of the intermediate framework 1 and thus all drive components attached thereto. On the output shaft from the drive gear unit 6 is provided an telescopically extensible cardan shaft 12 connected by a universal joint to a longitudinally displacable intermediate tubular shaft 14 carrying a scale indicator drum 15. The shaft 14 is journalled by bearings 16, in a sleeve 17 which is held stationery by pins 18. At one end of the sleeve 17 external threads 19 engage the internal thread of a ring member 20 which is rotatable by a handwheel 21 through a chain drive. The sleeve 17 and shaft 14 are thereby moved axially to right or left in a self locking manner. The motor 8 may be mounted on the base as in Fig. 6, wherein the intermediate framework is connected to hydraulic dampers 63 to 65 to damp oscillation about the axis of rotation and in addition is provided with pendulously sus - pended masses 66, and is suspended by springs 60 from the housing.
Patent GB-921350-A (GB)
Title: Improvements in and relating to ultracentrifuges for the separation of gases
IPC: B01D59/20
Filed: 1961-03-13
Abstract: 921,350. Centrifugal separators. REACTOR CENTRUM NEDERLAND. March 13, 1961 [March 17, 1960], No. 9127/61. Class 23. A centrifuge for separating mixtures of gases or gaseous isotopes comprises a tubular rotor 3 vertically mounted in a stationary casing 1 and having an open upper end bounded by a wall part 9 of the casing. The rotor is rotated by a pintle 4, driven by an electric motor 20, 21, supported in a bearing block 5 and fixed to a plate 15 at the lower end of the rotor. A magnet 6 on the rotor co-operating with another magnet or ring of magnetic material 7 on the casing keeps the rotor in an upright position. The mixture to be treated is supplied through a stationary tube 8 and one of the components is discharged through apertures 12 in part 9 and tube 14, the other component being discharged through apertures 16 in plate 15, scoops 18 and tube 19. In operation, a gas whirl 26 in a direction transverse to that of the rotation is created by the braking effect on the gas of the part 9. The space 2 between the rotor and the casing is subjected to high vacuum and sealed from its upper part 11 by a seal 10. In a modification, the upper marginal edge of the rotor is inwardly curved and the face of part 9 opposing the rotor is concave. In a further modification, Fig. 3, one of the separated components is discharged through apertures 22 in the rotor to a chamber 23 and thence to an outlet pipe 25, the chamber 23 being separated from space 2 by a seal 24.
Patent GB-268827-A (GB)
Title: Improvements to converters for supplying wireless receivers with current from the alternating mains and other uses
IPC: H02M7/06
Filed: 1927-04-02
Abstract: 268,827. Compagnie pour la Fabrication des Compteurs et Materiel d'Usines Ó Gaz. April 2, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Converting pulsating currents into steady continuous currents. - Current from alternating supply mains is converted into steady continuous current suitable for feeding the valve circuits of wireless receivers by an arrangement comprising a transformer t having a secondary winding s2 for heating the cathode of a rectifier r having two anodes connected to produce full wave rectification of current from a secondary winding s1. The smoothing arrangement comprises small capacity primary or secondary batteries B1, B2 connected across the output terminals at opposite sides of series inductances L1, L2. Automatic regulation may be effected by providing a lamp with constant current intensity " e in series with the transformer primary and connecting a winding c across the rectified current circuit arranged to control the saturation of a core on which are placed windings a, b connected across the cathode-heating winding a2 of the transformer.